Why does Huawei need to press twice to send a text message?

After entering, both SIM cards are opened;

After the SIM card is opened, look at the following default settings;

There are voice phone, information, data connection and other options. Click on the information and you will find it is automatic.

Here, you should choose a card that is commonly used to send text messages, or keep asking;

Then we can send text messages;

If you select the default setting of "Always ask", an inquiry window will appear when you send a short message. You just need to select the card you want to send a message to, and you can send it.